The UMS-produced "Day One" chronicles the aftermath of a devastating global event.

Last season, Graves directed and exec produced Fox's two-hour, $10 million pilot for "Fringe." The helmer is on a hot streak, with three consecutive pilots he directed -- "Fringe," NBC's "Journeyman" and ABC's "The Nine" -- going to series.

The "Twin Peaks"-esque "Happy Town" reunites writers Josh Appelbaum, Andre Nemec and Scott Rosenberg with Fleder, who directed the pilot and multiple episodes of their ABC drama "October Road" and an episode of their latest ABC series, "Life on Mars."

ABC Studios' "Inside the Box," about TV journalists in D.C., also continues a long-standing collaboration -- between Tinker and "Grey's Anatomy" and "Private Practice" creator Rhimes. Tinker has directed episodes of "Grey's" and is a director/exec producer on "Practice."

Buckland, who is directing Quill's multicamera buddy-comedy pilot for ABC Studios, won an Emmy for directing the pilot of NBC's "My Name Is Earl."